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Encyclopedia > Uranometria
Uranometria's engraving of the constellation Orion, courtesy of the US Naval Observatory Library
Uranometria's engraving of the constellation Orion, courtesy of the US Naval Observatory Library

Uranometria is the short title of a star atlas produced by Johann Bayer. It was published in Augsburg, Germany, in 1603 by Christophorus Mangus under the full title Uranometria : omnium asterismorum continens schemata, nova methodo delineata, aereis laminis expressa. This translates to "Uranometria, containing charts of all the constellations, drawn by a new method and engraved on copper plates". The word "Uranometria" derives from Urania, Muse of the heavens and "uranos" (oυρανός) the Greek word for sky / heavens. A literal translation of "Uranometria" is "Measuring the Sky" (to be compared with "Geometry"-"Geometria" in Greek, literally translated to "Measuring the Earth"). Download high resolution version (2550x3548, 1334 KB)A print of the copperplate engraving for Johann Bayers Uranometria showing the constellation Orion. ... Download high resolution version (2550x3548, 1334 KB)A print of the copperplate engraving for Johann Bayers Uranometria showing the constellation Orion. ... Orion is a remarkable constellation, visible from most places on the globe at one time or another during the year. ... Orion, a constellation often referred to as The Hunter, is a prominent constellation, perhaps the best-known in the sky. ... Aerial view of USNO. The United States Naval Observatory (USNO) is one of the oldest scientific agencies in the United States. ... A Star Atlas is a variant of the traditional geographic atlas, ie. ... Johann Bayer (1572 – March 7, 1625) was a German astronomer. ... Augsburg is a city in south-central Germany. ... King James I of England/VII of Scotland, the first monarch to rule the Kingdoms of England and Scotland at the same time Events March - Samuel de Champlain, French explorer, sails to Canada March 24 - Elizabeth I of England dies and is succeeded by her cousin King James I of... Simon Vouet, The Muses Urania and Calliope, c. ... A typical daytime sky. ... The heavens are the sky, the celestial sphere, or outer space. ...


It was the first atlas to cover the entire celestial sphere. For other meanings of Atlas, see Atlas (disambiguation). ... The celestial sphere is divided by the celestial equator. ...


The pages of Uranometria were originally engraved on copper plates by Alexander Mair (ca 1562-1617). It contained 51 star charts. The first 48 pages represent the 48 Ptolemaic constellations. The 49th page introduces 12 new constellations in the deep southern sky which were unknown to Ptolemy. The final two charts are planispheres labeled "Synopsis coeli superioris borea" and "Synopsis coeli inferioris austrina," or (roughly), "Overview of the northern hemisphere" and "Overview of the southern hemisphere." Copperplate refers to the use of inscribed sheets of copper in printing. ... The Hon. ... Claudius Ptolemaeus (Greek: ; c. ... Orion is a remarkable constellation, visible from most places on the globe at one time or another during the year. ... A planisphere for a particular latitude consists of a circular star chart and an overlay, to show which stars are visible at that latitude, at a particular day and time. ...


Each plate includes a grid for accurately determining the position of each star to fractions of a degree. The positions used by Bayer to create the Uranometria were taken from the expanded 1,005 star catalog of Tycho Brahe. Brahe's expanded list had circulated in manuscript since 1598 and was available in graphic form on the celestial globes of Petrus Plancius, Hondius, and Willem Blaeu. It was first published in tabular form in Johannes Kepler's Tabulae Rudolphinae of 1627. A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... Tycho Brahe , born Tyge Ottesen Brahe (December 14, 1546 – October 24, 1601), was a Danish (Scanian) nobleman astronomer as well as an astrologer and alchemist. ... Petrus Plancius (1552–1622) was a Dutch astronomer, cartographer and clergyman. ... Jodocus Hondius (1563-1611, sometimes called Jodocus Hondius the Elder to distinguish him from his son) was a Flemish artist, engraver, and cartographer. ... Willem Jansz Blaeu Willem Janszoon Blaeu (1571 – 1638), also rendered Willem Jansz Blaeu, was a Dutch cartographer and atlas maker, born in Alkmaar. ... Johannes Kepler Johannes Kepler (December 27, 1571 – November 15, 1630), a key figure in the scientific revolution, was a German mathematician, astrologer, astronomer, and an early writer of science fiction stories. ... The map of the world from the Rudolphine Tables The Rudolphine Tables (Latin: Tabulae Rudolphinae) consist of a star catalog and planetary tables published by Johannes Kepler in 1627. ...


The use of Brahe's catalog allowed for considerably better accuracy than Ptolemy's somewhat limited star listing. The stars listed in Uranometria total over 1,200, indicating that Brahe's catalog was not the only source of information used. Bayer took the southern star positions and constellation names for the 49th plate from the catalog of Dutch navigator Pieter Dirkszoon Keyser, who corrected the older observations of Amerigo Vespucci and Andrea Corsali, as well as the report of Pedro de Medina. Uranometria contains many more stars than did any previous star atlas, though the exact number is disputed as not all stars on the charts are labeled. Pieter Dirkszoon Keyser (1540-1596) was a Dutch navigator. ... Amerigo Vespucci (March 9, 1454 in Florence, Italy - February 22, 1512) was an Italian merchant and cartographer who voyaged to and wrote about the Americas. ...


Each of the constellations' stars are overlayed on an engraved image of the subject of the constellation. For reasons unknown, many of the human constellations are engraved as figures seen from behind whereas they had traditionally been rendered as facing the Earth. This oddity led to some confusion in the literal meanings of certain star names (e.g. the origins of several named stars refer specifically to "right shoulder" and the like, which would be incorrect given Uranometria's illustrations). Earth (often referred to as The Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth in order of size. ...


Uranometria introduced the Bayer star designations, which are still used today. It also introduced several of the modern constellations. Many of the brighter stars are given names which are known as Bayer designations. ...


The title page engraving

The title page, courtesy of the US Naval Observatory Library
The title page, courtesy of the US Naval Observatory Library

The engraved title page of Uranometria features an architectural motif with the full title in the center. On pedastals to either side stand figures of Ptolemy and Hercules. Enscriptions in the pedestals read, "Atlanti uetustiss astronom magistro" ("Atlas the earliest teacher of astronomy") and "Herculi uetustiss astronom discipulo" ("Hercules the earliest student of astronomy"). Across the top of the title page are engraved several additional figures. In the upper left is Apollo. Top center is Eternity with a crown of stars and two lions on leashes. Upper right is Diana with a cape of stars. Beneath the title banner is a figure of Capricorn and beneath that a view of Augsburg. saiph is a very interesting star as it has a lot of gases in it's atmosphere like oxygen, ilumin, sazeph, fitr also known as cancer causer and bioluminum Image File history File links Download high resolution version (2512x3586, 4856 KB)A print of the title page copperplate engraving for Johann Bayers Uranometria. ... Image File history File links Download high resolution version (2512x3586, 4856 KB)A print of the title page copperplate engraving for Johann Bayers Uranometria. ... Aerial view of USNO. The United States Naval Observatory (USNO) is one of the oldest scientific agencies in the United States. ... Hercules and his nephew, helper and eromenos Iolaus. ... Statue of Apollo at the British Museum. ... Diana was the equivalent in Roman mythology of the Greek Artemis (see Roman/Greek equivalency in mythology for more details). ... Capricornus (♑), a name meaning Horned Goat in Latin, is one of the constellations of the zodiac. ...


See also

A Star Atlas is a variant of the traditional geographic atlas, ie. ... Uranography (celestial cartography) is the branch of astronomy concerned with mapping the stars, galaxies, or other celestial bodies. ...

External links


Constellations changed by Johann Bayer in the 1603 text Uranometria Orion is a remarkable constellation, visible from most places on the globe at one time or another during the year. ... Johann Bayer (1572 – March 7, 1625) was a German astronomer. ... King James I of England/VII of Scotland, the first monarch to rule the Kingdoms of England and Scotland at the same time Events March - Samuel de Champlain, French explorer, sails to Canada March 24 - Elizabeth I of England dies and is succeeded by her cousin King James I of...

Centaurus | split into | Centaurus | Crux
Leo | split into | Leo | Coma Berenices
Piscis Austrinus | split into | Piscis Austrinus | Grus
Sagittarius | split into | Sagittarius | Corona Australis


Centaurus (Latin for centaur) was one of the 48 constellations listed by Ptolemy, and counts also among the 88 modern constellations. ... Centaurus (Latin for centaur) was one of the 48 constellations listed by Ptolemy, and counts also among the 88 modern constellations. ... CRUX is a lightweight, i686-optimized Linux distribution targeted at experienced Linux users. ... Leo (Latin for lion, symbol , Unicode ♌) is a constellation of the zodiac. ... Leo (Latin for lion, symbol , Unicode ♌) is a constellation of the zodiac. ... Coma Berenices (Latin for Berenices Hair) is a traditional asterism that has since become a constellation. ... Piscis Austrinus or Piscis Australis (both of which are Latin for Southern Fish) was one of the 48 constellations listed by Ptolemy, and is also one of the 88 modern constellations. ... Piscis Austrinus or Piscis Australis (both of which are Latin for Southern Fish) was one of the 48 constellations listed by Ptolemy, and is also one of the 88 modern constellations. ... Grus (Latin for Crane) is a southern constellation. ... Sagittarius (Latin for Archer, symbol , Unicode ♐) is a constellation of the zodiac, commonly depicted as a centaur drawing a bow. ... Sagittarius (Latin for Archer, symbol , Unicode ♐) is a constellation of the zodiac, commonly depicted as a centaur drawing a bow. ... Corona Australis or Corona Austrina (Latin for Southern Crown) was one of Ptolemys 48 constellations, and also counts among the 88 modern constellations. ...

The 12 Constellations created by Pieter Dirkszoon Keyser and Frederick de Houtman between 1595 and 1597 and introduced by Johann Bayer in the 1603 text Uranometria Orion is a remarkable constellation, visible from most places on the globe at one time or another during the year. ... Pieter Dirkszoon Keyser (1540-1596) was a Dutch navigator. ... Frederick de Houtman (1571—1627) was a Dutch explorer who sailed along the Western coast of Australia (see History of Western Australia) en route to Batavia. ... Events January 30 - William Shakespeares Romeo and Juliet is performed for the first time. ... Events 17 January - A court case in Guildford recorded evidence that a certain plot of land was used for playing “kreckett” (i. ... Johann Bayer (1572 – March 7, 1625) was a German astronomer. ... King James I of England/VII of Scotland, the first monarch to rule the Kingdoms of England and Scotland at the same time Events March - Samuel de Champlain, French explorer, sails to Canada March 24 - Elizabeth I of England dies and is succeeded by her cousin King James I of...

Apus | Chamaeleon | Dorado | Grus | Hydrus | Indus | Musca | Pavo | Phoenix | Triangulum Australe | Tucana | Volans

  Results from FactBites:
 
Uranometria - Wikipedia, the free encyclopedia (687 words)
Uranometria is the short title of a star atlas produced by Johann Bayer.
This translates to "Uranometria, containing charts of all the constellations, drawn by a new method and engraved on copper plates".
Uranometria introduced the Bayer star designations, which are still used today.
  More results at FactBites »

 
 

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